Actually may be using the term life cycle is not really accurate, the thing I interested to know is like how many component is cached, what is the level of caching? Say I have a component used in difference page, are thoses component render difference times or it render once then put to the cache and later page refer to the cache and get that componets.
And is there something like init-execution-destroy processing for all component? Look like all component do every setup in the constructor, just wonder if there is any destroy process of individual comonent or it just rely on GC. On 11/3/06, Johan Compagner <[EMAIL PROTECTED]> wrote: > why would that be help full in performance? > > What you should know when the session is created and when pages are created > and what does happen to that after that. > > johan > > > On 11/3/06, Carfield Yim <[EMAIL PROTECTED]> wrote: > > I personally think this is nice to show the life-cycle from the > > container start to generate a page at some where in wiki. Sound like > > this is a complex process that many user of wicket like to learn more > > and understand more about the performance impact to their application? > > > > On 11/3/06, Eelco Hillenius <[EMAIL PROTECTED]> wrote: > > > > I have a few questions: > > > > > > > > 1) Does anyone know of Wicket being used on a high traffic website? > > > > > > I know of people building them, but the ones I know are not yet in > > > full production. But maybe someone else on this list knows. > > > > > > > 2) What are some of the challenges related to scaling a Wicket > > > > application (beyond the general servlet recommendations of being > > > > stateless as long as possible, keeping the state small to facilitate > > > > clustering, etc)? > > > > > > The only tradeoff of Wicket is that Wicket is heavy on memory. While > > > that is not a big problem per se, it is something to keep in the back > > > of your mind, and one of the first things you would optimize when the > > > time comes to tweak your application. In general, try to use > > > detachable models when you create database driven apps, tweak the > > > number of history items kept, etc. Oh, and don't forget to set wicket > > > to deployment: > > > > > > <context-param> > > > <param-name>configuration</param-name> > > > <param-value>deployment</param-value> > > > </context-param> > > > > > > in web.xml. That'll have quite a big impact on the throughput. > > > > > > One thing to be careful of is Wicket with (public facing) sites with a > > > load that is hard to predict. If you have very large peaks you > > > probably want to keep your session time out low, and investigate > > > stateless pages (and forms and links etc), which are most mature in > > > Wicket 2.0 (though there is limiited support in 1.2). > > > > > > > > > > 3) Tapestry uses page and component pooling to help achieve higher > > > > throughput... > > > > > > Yeah, and whether that is a good thing is highly debatable. If you > > > read up on optimizing Java code, object pooling is usually on top of > > > the list of things you *should not* do, as it is likely the > > > synchronization you need will the bottleneck and hotspot is very good > > > in managing short lived objects. > > > > > > We have tested Tapestry vs Wicket performance a bit over a year ago, > > > to look for spots we might optimize, and our results were that Wicket > > > had a higher throughput even without optimization. > > > > > > > It doesn't appear like Wicket can employ such a > > > > technique due to the framework allowing direct page and component > > > > instantiation. Are pages and components so light weight pooling them > > > > is not worth the disadvantages of not being able to pass parameters > > > > via constructor or is this a known trade off? > > > > > > Wicket's unmanaged model encompasses much more than just passing in > > > parameters in the constructor. It means you decide on any form of > > > construction you like, it means you can program 'just java' as you > > > would do in other tiers of your application, and you can construct all > > > the aggregations you want. Furthermore, like I said above, pooling is > > > not even an advantage. > > > > > > > Thanks for any information you can provide! I will be sure to post the > > > > results of my investigation on this list in a week or two. > > > > > > > > Ryan > > > > > > Sure. Maybe you want to share the exact tests you're doing too? > > > > > > Eelco > > > > > > > ------------------------------------------------------------------------- > > > Using Tomcat but need to do more? Need to support web services, > security? > > > Get stuff done quickly with pre-integrated technology to make your job > easier > > > Download IBM WebSphere Application Server v.1.0.1 based on Apache > Geronimo > > > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > > _______________________________________________ > > > Wicket-user mailing list > > > Wicket-user@lists.sourceforge.net > > > > https://lists.sourceforge.net/lists/listinfo/wicket-user > > > > > > > > ------------------------------------------------------------------------- > > Using Tomcat but need to do more? Need to support web services, security? > > Get stuff done quickly with pre-integrated technology to make your job > easier > > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > > > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > _______________________________________________ > > Wicket-user mailing list > > Wicket-user@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/wicket-user > > > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job > easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > > _______________________________________________ > Wicket-user mailing list > Wicket-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wicket-user > > > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
